A consumer psychologist has revealed some of the bizarre ways that supermarkets convince their shoppers to buy more.
Everything from the way the shop is laid out to how bright it is, the music playing and what it smells like have a part to play.
Dr Cathrine Jansson-Boyd has said these factors are carefully thought out to ensure the customer spends as long as possible browsing and buying. She explained that the layout of supermarkets "trap" people, hoping they'll buy more things.
